On Wed, Jul 04, 2007 at 10:38:47AM -0400, Alan Stern wrote: > Okay, I agree that (1) can be handled without too much effort. But > doing it adds an extra test to _every_ driver's I/O pathway. Freezing > userspace does not incur all this additional overhead. For runtime PM to work it's already necessary to have a test in that path to check if the device is suspended. I can't see how this adds any overhead to the common case. -- Matthew Garrett | mjg59@xxxxxxxxxxxxx _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm